Weather in Leiden for September 2025
In general, the average temperature in Leiden at the beginning of September is 23.7 °C. As the month progressed, temperatures tended to significantly cool down, reaching an average of 17.3 °C by the end of September.
Leiden sees moderate rainfall in September, averaging 9 rainy days.
Is September a good time to visit Leiden? check out the best time to travel to Leiden page.
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Leiden in September average weather
Mon. | Tue. | Wed. | Thu. | Fri. | Sat. | Sun. |
---|---|---|---|---|---|---|
1 23° | 2 22° | 3 21° | 4 21° | 5 27° | 6 26° | 7 26° |
8 23° | 9 21° | 10 23° | 11 19° | 12 17° | 13 17° | 14 17° |
15 20° | 16 20° | 17 21° | 18 21° | 19 21° | 20 21° | 21 21° |
22 19° | 23 17° | 24 18° | 25 17° | 26 19° | 27 18° | 28 16° |
29 17° | 30 16° |
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Temperatures trend during September in Leiden
September weather day by day
Date | Weather | Temperatures | Rain | UV | More |
---|---|---|---|---|---|
1 Sept. | Light rain shower | 23° /14° | 1.2 mm | 5 | |
2 Sept. | Mist | 22° /17° | 6.5 mm | 5 | |
3 Sept. | Partly cloudy | 21° /16° | 0.3 mm | 6 | |
4 Sept. | Sunny | 21° /15° | 0.3 mm | 5 | |
5 Sept. | Sunny | 27° /16° | 0.3 mm | 7 | |
6 Sept. | Sunny | 26° /18° | 4.4 mm | 6 | |
7 Sept. | Sunny | 26° /18° | 0.2 mm | 6 | |
8 Sept. | Sunny | 23° /17° | 1.2 mm | 6 | |
9 Sept. | Cloudy | 21° /17° | 1.5 mm | 5 | |
10 Sept. | Sunny | 23° /16° | 4.8 mm | 6 | |
11 Sept. | Patchy rain possible | 19° /15° | 6.1 mm | 4 | |
12 Sept. | Partly cloudy | 17° /13° | 8.9 mm | 5 | |
13 Sept. | Cloudy | 17° /12° | 3 mm | 4 | |
14 Sept. | Sunny | 17° /12° | 0.1 mm | 5 | |
15 Sept. | Partly cloudy | 20° /13° | 0 mm | 6 | |
16 Sept. | Overcast | 20° /15° | 0.6 mm | 5 | |
17 Sept. | Overcast | 21° /15° | 0 mm | 5 | |
18 Sept. | Light rain shower | 21° /16° | 5.1 mm | 6 | |
19 Sept. | Light rain shower | 21° /15° | 3.9 mm | 5 | |
20 Sept. | Patchy rain possible | 21° /15° | 0.6 mm | 6 | |
21 Sept. | Light rain shower | 21° /14° | 10.1 mm | 6 | |
22 Sept. | Light rain shower | 19° /14° | 3.5 mm | 5 | |
23 Sept. | Light rain shower | 17° /14° | 8 mm | 4 | |
24 Sept. | Patchy rain possible | 18° /12° | 1.1 mm | 4 | |
25 Sept. | Patchy rain possible | 17° /13° | 6 mm | 4 | |
26 Sept. | Overcast | 19° /14° | 10.8 mm | 5 | |
27 Sept. | Partly cloudy | 18° /14° | 12.6 mm | 5 | |
28 Sept. | Patchy rain possible | 16° /13° | 2 mm | 4 | |
29 Sept. | Light rain shower | 17° /12° | 0.3 mm | 4 | |
30 Sept. | Cloudy | 16° /11° | 7.4 mm | 4 | |
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Leiden in September - FAQ
What to pack to Leiden in September?
As you prepare for your trip to Leiden in September, it's important to consider the typical weather patterns for the time of year. Below is a carefully tailored packing list to ensure that your time in Leiden, during September, is comfortable and enjoyable, regardless of the weather conditions.
- Clothing
- Layered Clothing: Light sweaters, long-sleeve shirts, light jackets, and comfortable pants
- Rain Gear: Lightweight, waterproof clothing
- Footwear
- Waterproof Shoes
- Accessories
- Sunglasses: For sun protection
- Sun Hats: Wide-brimmed hats for sun protection in warm weather
- Umbrellas/Raincoats: For rainy days
September rainfall patterns in Leiden
UV exposure in Leiden during September
Quick links
Get accurate weather forecasts for Leiden, located at latitude 52.158 and longitude 4.493. Stay updated with localized weather information tailored for Leiden.